Run: 2026-07-09-01KX40VJKHC8WJAPTRX6ZDHGTX

Run Details

Duration:
5.8s
Cost:
$0.010153
Provider:
OpenAI

Evaluation summary

Score Evaluator
Details Link
100.00% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 10 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain hammered the manor windows as guests gathered for dinner. At midnight, Lady Vale's scream shattered the polished silver silence. Everyone froze beside candlelit portraits, listening for another dreadful sound. Then the lights failed, swallowing faces, corridors, and whispered accusations. When darkness lifted, Doctor Renn lay dead beneath the staircase. His amber pocket watch ticked near his polished black shoe. No one admitted moving, though every guest watched someone closely. Inspector Marlow arrived smiling, carrying an umbrella and empty notebook. He studied the corpse, then noticed mud upon Renn's cuff. Outside, rain continued, yet the garden paths remained perfectly dry. Marlow closed his notebook, suddenly certain the murderer remained inside.
created_at"2026-07-09T18:04:51.194Z" 7/9/2026, 6:04:51 PM
model"openai/gpt-5.6-terra-20260709"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency4919
moderation_latency(null)
generation_time5305
tokens_prompt46
tokens_completion204
native_tokens_prompt41
native_tokens_completion670
native_tokens_completion_images0
native_tokens_reasoning515
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"completed"
service_tier"default"
usage0.0101525
router(null)
provider_responses
0
endpoint_id"3cc89000-ae34-4dde-9c7d-5ce009c8af0b"
id"resp_0ad4311fbefb4448016a4fe2c34bf88194a8f0fde4a84c80c2"
is_byokfalse
latency241
model_permaslug"openai/gpt-5.6-terra-20260709"
provider_name"OpenAI"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.18.0; linux; x64))"
http_referer(null)
request_id"req-1783620291-kNXDOmBoFfAeP7QmwDFc"
session_id(null)
preset_id(null)
api_type"completions"
id"gen-1783620291-LoGd2BKg3YZJpavrlT6i"
upstream_id"resp_0ad4311fbefb4448016a4fe2c34bf88194a8f0fde4a84c80c2"
total_cost0.0101525
cache_discount(null)
upstream_inference_cost0
provider_name"OpenAI"
response_cache_source_id(null)
data_region"global"

Evaluation details

Result Evaluator Details Meta Data
100.00% Matches word count n/a
neededCleanfalse
sentences11
wordCounts
010
110
210
310
410
510
610
710
810
910
1010